Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Net revenues	$ 192,213	$ 238,855
Cost of revenues	132,170	164,441
Gross profit	60,043	74,414
Selling, general and administrative expenses	59,558	64,506
Restructuring and Related Cost, Incurred Cost	(42,292)	(7,842)
Operating (loss) income	(73,405)	17,750
Other expense (income):
Other income, net	(2,680)	(2,148)
Total other expense, net	6,331	10,946
(Loss) income from continuing operations before income taxes	(79,736)	6,804
Provision for income taxes	8,374	5,709
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(88,110)	1,095
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	9,162	(5,728)
Net loss	$ (78,948)	$ (4,633)
Basic earnings (loss) per common share:
Basic (loss) income per common share:	$ (3.96)	$ (0.23)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0.46	(0.29)
Income (Loss) from Continuing Operations, Per Basic Share	(4.42)	0.06
Diluted from continuing operations	(3.96)	(0.23)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0.46	(0.29)
Income (Loss) from Continuing Operations, Per Diluted Share	$ (4.42)	$ 0.05
Weighted average number of common shares outstanding:
Basic	19,935	19,870
Diluted	19,935	19,976
Retained Earnings [Member]
Other expense (income):
Net loss	$ (78,948)	$ (4,633)